Math Is Fun Forum

MrRHQ

Member

Registered: 2009-03-15

Posts: 8

Greetings

Hi,
I am a teen software engineer/programmer and one of the important academic things that I have to learn for that is mathematics.

I currently go to a charter school so the education there is like no other school I've been to. Right now, they're rechartering the school but might fail this year (I'll have to look at another school to go to) cause they're losing money.

Math status [as of 3/16]
Items marked with * are what I know how to do basically or minimaly, items marked with ** are high knowledge.

ALGRBRA-------------------------------------------
[**] Know algebra
[**] Know how to graph, plot, and calculate
[**] Know sign simplification for all expressions
[**] Know how to solve for equations using transformations and simplifications
[**] Know arithmetic algebra
[**] Know how to do many/all factorizations for any model and function
[**] Know arithmetic equations, transformations, and simplifications
[**] Know rational/quotient equations, transformations, and simplifications
[**] Know linear models and functions
[**] Know quadratic models and functions
[**] Know cubic models and functions
[*] Know many polynomial models and functions (Excluding X-Intercept of high degree polynomials)
[**] Know reciprocal, exponential, root based, and logarithmic models and functions
[**] Know reciprocal, exponential, root based, and logarithmic equations, transformations, and simplifications
[**] Knowledge of functions such as abs, floor, ceil, round, sign, etc...
[**] Knowledge of number sets and sets such as prime set, real set, integer set, etc...
[**] Knowledge of supersets, subsets, and elements
[*] Knowledge of unions and intersections

GEOMETRY/TRIGONOMETRY-------------------------------------------
[**] Know what pi, golden ratio, and other geometrical constants mean

[**] Know 2D geometry
[**] Know how to find the parameter of any polygon
[*] Know how to find the parameter/circumference of any curve or model (Only circumferences of circles and elipses)
[**] Know how to find the area of any regular polygon
[*] Know how to find the area of any polygon
[X] Know how to find the area of any curve or model (Only circumferences of circles and elipses)
[**] Know how to take away or add units of area from (an)other area(s)
[**] Know how to convert area to parameter and vise versa
[**] Know how to do transformations on 2D geometrical shapes

[*] Know 3D geometry
[*] Know how to find surface area of any regular 3D polygonal shape
[X] Know how to find surface area of any 3D mesh
[**] Know how to find volume of any regular 3D polygonal shape
[X] Know how to find volume of any 3D mesh
[*] Know how to take away or add units of volume from (an)other volume(s)
[X] Know how to convert surface area to volume and vise versa
[*] Know how to do transformations on 3D geometrical shapes

[*] Know trigonometry
[**] Know trigonometric functions such as sine, cosine, and tangent and their inverses
[*] Know many/all unused trigonometric functions like secant, varsine, cotangent, etc...
[*] Knowledge of quadrants and use of arctan2

STATISTICS-------------------------------------------
[**] Know basic statistics
[**] Know statistical word problem solving (But not perfect at it)
[**] Know how to find mean (average), median, minimum, and maximum
[**] Know how to find quartiles, inter-quartiles, and range
[**] Know how to use many statistical plots to group numbers
[*] Know how to find standard deviation, z score, correlation coefficient, and other statistical distributions
[X] Know advanced statistical functions and models like zeta and gamma (only some knowledge)
[X] Know how to use (m)any pieces of scattered data to find any solution
[**] Know about summation

CALCULUS-------------------------------------------
[X] Know calculus
[X] Know the imaginary unit i and what complex numbers are
[X] Know integrals
[X] Know all about products of numbers and product logarithms
[X] Know about transforming and simplifying with calculus
[X] Know functions and models made with calculus
[X] Know about solving infinite sums with algebraic equalities
[X] Know about other branches of calculus and complex numbers like chaos theory
[X] Know how to create theories and constants based on calculus (hell, I can't do this)

Now you see what I need help on

Devantè

Real Member

Registered: 2006-07-14

Posts: 6,400

Re: Greetings

Welcome.

I assume [X] means you have no knowledge at all on the subject?

If so, we can get you started.

I hope you learn something useful during your time here at Maths Is Fun.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 46,179

Re: Greetings

Hi MrRHQ,
I hope you enjoy being here, and also learn the branches of Mathematics you aren't too familar with, as Devantè mentioned in the earlier post.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

lightning

Real Member

Registered: 2007-02-26

Posts: 2,060

Re: Greetings

Hiya MrRHQ,

I'm learning too!

3y + 4x = 7yx

Am I right? I hope so! I might not know as much as... anyone here BUT I hope I can learn off of you! ^_^

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Zappzter - New IM app! Unsure of which room to join? "ZNU" is made to help new users. c:

Devantè

Real Member

Registered: 2006-07-14

Posts: 6,400

Re: Greetings

3y + 4x = 3y + 4x, you can't simplify that.

But if you were multiplying them, it would be;

4x × 3y = 12xy

MrRHQ

Member

Registered: 2009-03-15

Posts: 8

Re: Greetings

3y + 4x is a binomial, right?
The two coefficients cannot factor so it's in it's simplest form. In other words, I can't divide by 3 or 4 to get a simplified answer.

JaneFairfax

Member

Registered: 2007-02-23

Posts: 6,868

Re: Greetings

By the way, welcome MrRHQ!

Last edited by JaneFairfax (2009-03-19 09:14:53)

lightning

Real Member

Registered: 2007-02-26

Posts: 2,060

Re: Greetings

so what Dev is saying is;

3y + 4x = 3y + 4x

That makes no sence. Ok how about;

2x + -3 = -6x

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MrRHQ

Member

Registered: 2009-03-15

Posts: 8

Re: Greetings

2x + -3 = -6x

Subtract 2x.

-3 = -8x

divide by -8.

x= 3/8

lightning

Real Member

Registered: 2007-02-26

Posts: 2,060

Re: Greetings

Why are we subtracting the 2x?

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Devantè

Real Member

Registered: 2006-07-14

Posts: 6,400

Re: Greetings

Because we don't like him.

lightning

Real Member

Registered: 2007-02-26

Posts: 2,060

Re: Greetings

Lol. xD

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johaneshalim

Member

Registered: 2009-03-22

Posts: 7

Re: Greetings

hehehehe nice people!!! woo hoo...welcome buddy

listening

Member

Registered: 2009-10-08

Posts: 6

Re: Greetings

hi MrRHQ,

Well, calculus is what you're missing pretty much eh?  I can tell you that some of the solutions to the other questions are in calculus too.  I learned calculus in some depth because I took engineering in university.  Physics relies heavily on calculus and engineering on physics, so...

Get yourself a good text on calculus and you'll take off!  There are some weird concepts in there, but once you get them its really fun.  Try going to your library and doing a title search for "Introduction to Calculus" Guess that's obvious...  But really, the quality of calculus texts these days is great, and there are plenty of intro books.  Given your rich basis, you'll have no problems.